DFI and ECMDiscuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.
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I've searched around google for quite a while, and found some articles on this site as well, but none of them really answered my question (I hope you guys can even though I don't have a thirdgen anymore )
I'm in the process of building a 383 for my '92 Chevy truck, the truck currently has the 16144288 ECM, and from what I understand it has certain code stored directly on the board rather than in the prom...
I basically have two questions at this point:
1) Is there a way that I can burn V8 code to this ECM and make it run without swapping ECM's. For example the 1227747 code comes to mind since it was in V8's as well. I understand burning and I have the equipment I just wasn't sure since I read the article about this ECM having code stored directly on it rather than all being in the prom.
2) If not #1, can I directly swap the 1227747 ECM in place of the 16144288? Will the harnesses be the same? Do I need to change any of the pinouts to make it work?
I'm putting in a 383 and most likely another 700R4. Going to be swapping all the respective TBI parts to 350 such as the TB, intake manifold, knock sensor(s), etc. I just wanted to make sure I could base off the 747 code (since it's already V8) and burn this on the 2732A in the 4288 ECM.
You need to switch to the 7747. It's real easy. On my Astro I had to switch pins A11 and D2 in the ECM harness.
The 4288 ECM has the CALPAK soldered to the board. If you try to run the $42 code in the 4288 it will immediatly throw a code 51 and disregard the PROM.
Been there, done that
__________________ '96 Bronco: 302, 5-spd, 4wd, 32" tires '84 Impala: 350 with Dart heads 200cc IR 72cc CC, Ferrea valves, 9.3:1 compression zero clearanced, Comp 276HR cam, 1.52 Pro Mag roller rockers, ported Torker II + 1" spacer, DIY 4bbl TBI, 95#/hr injectors, single GT45 turbo, boxed control arms holding a GM 8.5" G80 with 4.10's
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